| Manufacturer |
John Deere |
| Price |
13,000(USD) |
| Model |
770 |
| Equipment Type |
Compact Utility Tractors |
| Factory |
Yanmar |
ENGINE DETAIL
The John Deere 770 features a Yanmar 3TN82-RJX diesel engine with a displacement of 1.4L and a high compression ratio of 18.1:1, optimizing fuel efficiency and torque output. Its direct injection fuel system enhances combustion efficiency, while the dry element air cleaner ensures minimal maintenance under varying operational conditions. This tractor is well-suited for small to medium farming tasks, offering a balance of power at rated RPMs of 2600, with the capability to operate smoothly within the idle range of 800-2800 RPM.
| Description |
Yanmar 3TN82-RJX diesel 3-cylinder liquid-cooled |
| Displacemen |
83.1ci / 1.4L |
| Bore/Strok |
3.22x3.39inches / 82x 86mm |
| Fuel syste |
direct injection |
| Air cleane |
dry element |
| Pre-heatin |
air intake heater |
| Compressio |
18.1:1 |
| Rated RP |
2600 |
| Idle RP |
800-2800 |
| Starter volt |
12 |
| Oil capacit |
4.2qts / 4.0L |
| Coolant capacit |
5.1qts / 4.8L |
JOHN DEERE 770 ENGINE
The John Deere 770 is powered by a Yanmar 1.4L 3-cylinder diesel engine, known for its fuel efficiency and reliability, making it suitable for small to medium farming tasks. Its compact size provides excellent maneuverability in tight spaces, but the engine may underperform in high-demand conditions such as heavy tillage or transport across rugged terrain. Overall, it's an ideal choice for operations prioritizing efficiency and ease of use in less demanding applications.
| Description |
Yanmar 1.4L 3-cyl diesel |
TRANSMISSION
The John Deere 770 features an unsynchronized gear system with a total of 8 forward and 2 reverse speeds, which can make gear shifting less convenient compared to synchronized transmissions. The 215mm dry disc clutch offers durability but may require more precise operation to avoid wear. With an oil capacity of 16 quarts (15.1L), adequate lubrication is facilitated, though regular maintenance is crucial to prevent overheating, especially during prolonged use in demanding agricultural tasks.
| Typ |
unsynchronized gear |
| Gear |
8 forward and 2 reverse |
| Clutc |
215mm dry disc |
| Oil capacit |
16qts / 15.1L |
| Description |
Four gears, plus reverse, in two ranges |
SPEEDS
| Description |
With 12.4-16 R1 rear tires |
JOHN DEERE 770 TRANSMISSION
The John Deere 770 tractor features an 8-speed unsynchronized gearbox, which offers a straightforward power transmission but can be challenging during quick gear shifts due to its unsynchronized nature. This gearbox design may lead to increased wear on the transmission components over time, particularly in high-demand scenarios where frequent shifting is required. However, the simplicity of the unsynchronized gearbox can benefit operators seeking ease of maintenance and lower repair costs compared to synchronized transmissions.
| Description |
8-speed unsynchronized gear |
MECHANICAL
The John Deere 770 tractor features a spur gear final drive which provides robust power transmission but may result in higher gear noise compared to helical systems. The mechanical rear differential enhances traction under variable conditions but has limitations in terms of slip compensation compared to limited-slip differentials. The two- or four-wheel drive options offer versatility for different terrains, while the power steering aids in maneuverability, making it suitable for diverse agricultural tasks.
| Description |
Two- or four-wheel drive Dry shoe brakes Two-post ROPS |
| Final drive |
spur gear |
| Differential loc |
mechanical rear |
| Steerin |
power OptOptional |
CAPACITY
| Fue |
6.3gal / 23.8L |
| Hydraulic syste |
4 gal/15.1 L |
| Front axl |
3.2qts / 3.0L |
HYDRAULICS
| Typ |
open center |
| Capacit |
4 gal/15.1 L |
| Pressur |
2050psi / 141.3bar |
| Rear valve |
2 OptOptional |
| Mid valve |
2 OptOptional |
| Pump flo |
5.6gpm / 21.2lpm |
| Total flo |
5.6gpm (manual steering) / 21.2lpm 9.9gpm (power steering) / 37.5lpm |
| Steering flo |
4.3gpm / 16.3lpm |
TRACTOR HITCH
| Rear Typ |
I |
| Contro |
position control |
| Rear lift (at 24 |
815lbs / 369kg |
POWER TAKE-OFF (PTO)
| Rear PT |
transmission live OptOptional |
| Rear RP |
540 |
| Engine RP |
2100@2600 |
| Mid PT |
live OptOptional |
| Mid RP |
2100 |
JOHN DEERE 770 TIRES
The John Deere 770 offers versatility with both 2WD and 4WD configurations and multiple tire options, allowing for tailored performance based on terrain and application. The 2WD with standard tires is suitable for flat, stable ground, while the 4WD configuration enhances traction and stability on uneven surfaces or in wet conditions. However, the choice of lawn/turf tires suggests intended use in residential or commercial landscaping, making it essential to match tire selection with operational needs for optimal performance.
| 2WD Standard tires (ag |
Front: 4.00-15. Rear: 9.5-24 |
| 4WD Standard tires (ag |
Front: 6.00-12. Rear: 12.4-16 |
| 2WD Optional tires (ag |
Front: 6.50-10. Rear: 12.4-16 |
| Lawn/turf fron |
25x8.50-14 |
| Lawn/turf rea |
13.6-16 |
DIMENSIONS & TIRES
The John Deere 770 tractor features a compact wheelbase of 61 inches, optimizing maneuverability in tight spaces, which is advantageous for small field operations. Weighing between 1930 to 2105 pounds, it offers a balance of stability and mobility; however, this weight range may limit performance on softer terrains. The tire specifications, with a narrower front tire (4.00-15) and wider rear tire (9.5-24), provide improved traction and steering capabilities, making it suitable for light to moderate agricultural tasks.
| Wheelbas |
61inches / 154cm |
| Weigh |
1930 to 2105 pounds |
| Front tir |
4.00-15 |
| 2WD Rear tir |
9.5-24 |
770 SERIAL NUMBERS
770 SERIAL LOCATION
| Description |
Serial number plate above the PTO shaft on the John Deere 770 |
ELECTRICAL
| Groun |
negative |
| Charging syste |
alternator |
| Charging amp |
20 |
| Battery CC |
447 |
| Battery volt |
12 |
